Question

Помогите дам 50 баллов СРОЧНО?!!!.
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Answer 1

$4) \: \: \: \: \: (1 - 1.3 \times 1.6) \times ( - 3.2) = (1 - 1.69) \times ( - 3.2) = ( - 0.69) \times ( - 3.2) = 2.208$

$5) \: \: \: \: \: (\frac{1}{3} - \frac{5}{6} ) \div 3 \frac{1}{2} = ( \frac{2 - 5}{6} ) \div \frac{7}{2} = ( - \frac{3}{6} ) \times \frac{2}{7} = - \frac{6}{42} = - \frac{1}{7}$

$6) \: \: \: \: \: ( - \frac{1}{4} + \frac{7}{8} ) \div ( - 1 \frac{1}{4} ) = ( \frac{ - 2 + 7}{8} ) \div ( - \frac{5}{4} ) = ( \frac{5}{8} ) \times ( - \frac{4}{5} ) = - 0.5$